Sir Thomas Peirson Frank (23 July 1881 – 12 November 1951) was a British civil engineer and surveyor.[1][2] He is particularly remembered as "the man who saved London from drowning" in the Blitz.[3]
Frank was chief engineer of the London County Council from 1931 to 1946 and coordinating officer for Road Repairs and Public Utility Services during the period 1939-1945. He was knighted in 1942 for his direction of the repair services that enabled London to carry on in spite of the severest air raids. He is credited with having organised and put to action "rapid response" teams who repaired upwards of a hundred breaches in the Thames wall, thus preventing low-lying areas of London from being flooded,[6] an achievement that, for reasons of protecting "the public's morale," was kept secret during the war.[6]